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Showing content with the highest reputation on 11/11/14 in all areas

  1. 10 points
    I'll put out 2 links here to space.com and a main story on the up and coming landing today - November 11th, 2014 - on Comet 67P/Churyumov-Gerasimenko To the main written story: http://www.space.com/27716-risky-comet-landing-7-hours-terror.html And this will take you the site for the actual landing - to be broadcast live from ESA (European Space Agency): http://new.livestream.com/esa/cometlanding Finally here is a link to the front door of space.com itself. You may wish to bookmark it for future uses: http://www.space.com/ So get out your popcorn & buckle your seat-belt, we are heading to a comet! Clear Skies, Dave
  2. 6 points
    Hi every one, Due to the bad weather I have been re processing some of the data I have got through out the year, strangely in the warmer months, I never was 100% happy with the first go at this I am glad I went back, what do you think, Paul Much bigger https://www.flickr.com/photos/kazastrophotos/15147965293/sizes/k/in/photostream/
  3. 6 points
    Old sol is beginning to get rather low here now at 58 degrees north. In fact it was only after I began imaging that I realised the sun was behind the twigs of a bush in the garden. :rage: That bush has now been trimmed considerably! Anyway the usual mosaics are done with the PSTDS and the ST102 and Lunt CaK B600. Close up Ha shots with the Quark and ST102. Active region is AR2205.
  4. 5 points
    ... better known as the Pleiades or Seven Sisters. Total integration time is just 70 minutes; 5 minutes subs @ ISO 1600 with a Canon EOS 5D Mark II (Baader Mod) and Takahashi Epsilon-180ED (f/2.8). Sky brightness (SQM): 20.8 magnitude/arcsec². Considering the relatively short exposure time, I'm quite happy with the result. Though I had to do more noise reduction and 'polishing' than I would normally allow me to do. In fact, I normally tend to avoid noise reduction. I also had to crop the image due to nasty gradients. And here is where it came from (one single, unprocessed sub). Please visit my website for further details and a high-res version.
  5. 5 points
    Faced with a combination of terrible skies outside and a family all snoring their heads off ( my wife has borderline narcolepsy!!) I decided this evening I would put my time to good use and scour SGL for useful hints and tips, opinions about some of the things I want to look at with my scope etc etc. After spending a couple of hours reading some seriously interesting stuff, I felt compelled to post a heartfelt expression of thanks here. The absolute wealth of knowledge and experience, coupled with a hugely friendly and helpful atmosphere make reading the latest posts on here one of my favourite things to do. If most people were half as nice in day to day life, then the world would be a far nicer place to be. Seriously guys, for the advice, for the patience and for the not laughing at all of the stupid questions , I am sincerely grateful. It's my hope that one day , after gaining lots more experience , that I'll be able to help some similarly hopeless newbie. Keep up the good work guys :-) Andrew
  6. 5 points
    3 images taken approximately 1 minute apart starting at 10.19
  7. 4 points
    Hi, This week I took photo the M64 galaxy. Photo details: Luminance: 10 min x 15 pic = 2.5 hours RGB: 5 min x 3 pics. 15 min for each channel Link to the picture: http://www.flickr.com/photos/101543943@N04/14005947154/ Have a great day! Haim My Flickr page: http://www.flickr.com/photos/101543943@N04/
  8. 4 points
    A quick sketch of yesterdays Sun. I think I've made the sunspots too big relative to the Sun - this is a regular fault in my sketches, I usually make features too big relative to the fov.
  9. 4 points
    Captured under a full moon on Guy Fawkes night, IC443 the Jellyfish Nebula. Definitely want to revisit this target when it's a moonless night to see how much more detail I can capture. Only 9 x 1800s total 4.5hours exposure EQ6 with EQmod QSI583wsg Lodestar x2 Megrez 72 APO Astrodon 3nm Ha filter Sequence Generator Pro PHD2 Processing in PI As always, comments/criticism is welcome. This isn't quite up to Sara's incredible standard (yet) but we'll get there one day Phil Full res here: http://www.astrobin.com/full/134463/0/?real=&mod=
  10. 4 points
    Hi all, A single nighter on M31. In fact this was more a test of the spacing for the Baby Q's reducer than anything else. Lots of wind which was impacting on seeing, but the data actually isn't too bad considering. Try as I might I couldn't get the lovely blues I see in some renditions of this target. This one is distinctly yellow - I hope not too green (something my images suffer from despite my best efforts, particularly when loaded up to SGL - to do with my eyes, no doubt!) 18 x 180s each in RGB, no luminance. Scope: Tak FSQ85ED Camera: Atik 490ex Mount: iOptron CEM60-EC Guiding: Atik OAG, PHD2, QHY5L-II Thanks for looking
  11. 4 points
    One, Rosetta is not landing on 67P - Philae is! Two, whatever changes will happen to 67P's orbit have already been made. Short of a few grams of propellant to send Philae on its way, Philae will be coasting down under 67P's gravity so the overall orbit of the 67P / Rosetta / Philae system will not be affected one jot by this landing attempt. Three, as above, the Rosetta / Philae mass is so small compared to 67P's that any overall affect will be unmeasurable. Four, humanity needs to get of this rock at some point and we are never going to get anywhere with that attitude!
  12. 4 points
    I watched this with my 8 year old daughter while she was getting ready for bed. She asked me what a VLT was and when I said it stood for a very large telescope, she killed herself laughing and then asked if those geniuses from NASA would call our cat a SBAWC (small black & white cat). Found it difficult to argue with her .
  13. 4 points
  14. 4 points
    "Supposed to be beyond our reach"? Supposed by whom? The Flying Spaghetti Monster? I think the FSM is cool with us dropping a robot on a comet. If we were worried about every small action having unforeseen consequences later on, we'd never get out of bed in the mornings.
  15. 3 points
    I plan to add many images to this thread and invite any other Starizona Hyperstar owners to please feel free to post on this thread as well! Lately I have been trying more mosaics since my field of view is around 1 degree square and I really love the big swaths of sky along the Milky Way. I'll post this one to begin which is a single frame of 15 subs each 4 minutes long, each. I am finding out after about a year of experience with this system (in my decently dark skies) that 3 minute subs with more exposures gets me the best results. Iris Nebula NGC 7023 in Cepheus
  16. 3 points
    Another capture plucked from the directory on my hard drive labelled " Jupiter Captures That I Haven`t Bothered With or Forgotten About " This image is the result of data acquired on the 06.04.14 - seeing was relatively steady and GRS is lurking in the shadows before transit. Two images - the original and the original resized to 75%. Think I prefer the reduced version. Thanks for looking as always. Best regards, Ralph
  17. 3 points
    This has taken about a week to collect the data on three separate nights. It consists of 33 x 600s in Ha binned 1x1 and 9 x 900s in both OIII and SII binned 2x2 through my Megrez 90 scope with Atik 460EX mono camera and Astrodon filters. Originally I tried 20 min subs with the Ha but was getting star trailing which may now be sorted. I don't really know why but the processing has taken as much time as the capture. Dave
  18. 3 points
    I dedicate today's image to those countless souls who never got to see another sunrise ..... We WILL remember them ..... Full size ... http://www.astrobin.com/full/135497/0/ 1000D + Tal 100RS + 1.4 x Barlow + ND3.8 + OIII. 1/125s @ ISO 200 , 19/250+ , Reg 5.1 , Gimp 2.8. Day by day album ... http://www.astrobin.com/users/steveward53/ 275/316 ...
  19. 3 points
  20. 3 points
    In terms of forum convention, and there is no hard and fast rule here, widefield implies camera lens imaging of constellations, the Milky Way or at least major parts of constellations. I think it's a fair distinction. Deep Sky tends to mean, conventionally, imaging through a telescope. It's nice, I think, for those imaging with short FL camera lenses to have a separate venue. I sometimes produce widefield images via multi panel mosaics and using a focal length of around 500mm and a full frame camera. I post them in Deep Sky because they are telescopic images and can also be zoomed in on so that they are like any other short FL telescope image when at close quarters. It's a bit like 'fast F ratio.' What does that mean? Well, it is never defined but most people feel that faster than F5 or so is 'fast.' Some migh say F4. But that is a reasonable agreement. Olly
  21. 3 points
    this is an image taken earlier, it's shows the HUGE magnetic lines aroung the old AR 2192 ( it will be numbered differently when it becomes visible) It is clearly still very active as the image shows, how big it is remains too be seen. The next 48 hours will be interesting Tony
  22. 3 points
    Thanks for the encouragement fellas! Jambouk… I don't use a flattener as the Edge optics are already pretty well corrected. I really do like the fact that I can capture several objects in one night if I can stay awake... Here is my M31 that imaged a week ago or so. I took 12 panels of 10X180 seconds and combined them in MSICE.
  23. 2 points
    What is movement of lunar libration? The mvimento of libration is due to non-perfect synchronization of motion of rotation and revolution of the moon that allows us to see around 9% of the lunar surface (the boundary zone of the hidden face) opposite the Earth, which is invisible when observing the Moon our position on Earth. The libration occurs due to displacement (sway), real or apparent, of the lunar axis in relation to their average positions. Therefore this '' staggering '' Moon allows us to see 59% of its surface at certain times. These moments of maximum libration that alternate between libration North, South, East and West, either in latitude or in longitude, gives us an interesting opportunity to make observations and lunar images of these regions still unknown to most of us. There are 3 types of librações: libration in longitude, latitude and daily libration libration .. Libration in latitude - is the effect of inclination of the plane of the lunar orbit to the plane of Earth's orbit. Libration in longitude - the effect is constant speed of rotation of the Moon and the variable speed of your revolution. The libration in longitude lets see adjacent areas east and west of the Hidden Face. Physical libration. - True to swing the axis of rotation of the Moon You are limited to a few arcminutes and is due to variations of the earth's attraction, even taking into account the heterogeneity of the interior of the Moon. This libration (East) - The libration of the moon reveals its surface part of the eastern edge that faces the earth. Libration West - The libration of the moon reveals part of the western edge of the surface that faces Earth. Libration North - The moon reveals part of the surface of the northern edge that is facing the earth. Libration South - The Moon reveals part of the surface of the southern edge that is facing the earth. In the case of the attached photos have a libration in longitude that would allow us to visualize a greater part of the eastern edge (east) if the sun had not already put into this site. I tried to highlight in the photos Eimmart crater with a yellow arrow and a small crater Eimmart What lies behind extamente Eimmart. Notice how in the photo of July 13, only a small Eimmart The edge is visible. In the photo on Nov. 8 the visible portion of the Eimmart is noticeably higher. This proves to us that there was a movement of libration in longitude since we are dealing with craters that lie in the lunar eastern edge. Source: Guide to Lunar Observation - Rosely Gregio - REA / Brazil Adaptation and complementation text: Avani Soares http://www.astrophotogallery.org/showfull.php?photo=12927
  24. 2 points
    Woke at 6:10am and had to leave for work at 6:45am So grabbed my 102 frac for a quick 15mins with Jupiter (love the grab n go aspect of this scope.) With no cool down times really needed it allowed a quick fix of planetary wonder. It was the first time using my new scope on the planets and only had an Ethos 13mm to vue (x64) but man what a sight. Lovely framing with the wide screen view. The planet just hung their in open space with shape detail across the surface and its accompanying moons beautifully framed too. Just wish I had a bit more reach. Gonna have to order new eyepieces now! I can totally see what the refractor guys mean now, with the sharp, contrasty and unobscured views (not wanting to open a debate, just passing comment). I was overjoyed with the view. Can't wait to have some serious time with Jupiter, plus a couple of more eyepieces. The best is definitely yet to come!
  25. 2 points
    Hi all, Well, i managed to shake the gremlins out of my set up, and actually use it This was also my first run in with the stacking software, As the Moon was up, i thought this would be the target for a shake down for the gear and me ! I didn't really have a plan as such, just capture some frames and see what worked and just as importantly, what didn't ! Capture Software : Sharpcap2 Stacking Software : RegiStax5 This is the result : Any pointers /advice or criticism Thanx for looking Andy
  26. 2 points
    I was distracted by Sunday's prominence, but also found time to have a go at AR2205. It's an improvement on my previous surface imaging, partly because the seeing settled down nicely for a while (around midday) and partly because I've been using the superb images on the forum here as examples to experiment with different colour templates etc when processing.
  27. 2 points
    I managed a session this morning but there was thin cloud and not good seeing, I persevered and managed a Prom Quark shot through a TV85 followed by SM60DS with 2.5x powermate. The camera was a QHY5II-Lm and 100/1000 frames. I feel they don't do justice to the visual view which is either my camera or lousy processing,
  28. 2 points
    It was good to get back to some lunar processing, the first one up was Letronne... All images were captured in mono and I added false colour From the seventh image (Plato) down, I started using Lucy Richardson deconvolution for sharpening, instead of Smart Sharpen, to get some experience using the settings, the seeing was not that brill for this session. Was good to get the SCT out at last, even if the 2x barlow stayed in the case! Schiller, fourth down, came out quite misty. I wonder if I took that capture when my SCT dewed/frosted up? I had turned the heat strip down a bit just in case it was contributing to the unstable image. I blame Jarrod for the white inverted Copernicus, as I really liked his inverted version --- 3rd November, 2014 Celestron Edge 8", Grasshopper 3 camera (ICX687), red filter
  29. 2 points
    ED 120 APO and 2.5x Powermate. panes of 640x420 taken with my ASI120MM mono camera through a red filter. Stacked in AS2 and finished in Astra Image and PSCS5:
  30. 2 points
    Here is a quick before image of the a portion of veil nebula on my 203mm newt and my new used 450d. I am going to self mod once I get the filter and see what the difference is. 5 x 10 mins subs @ 1600ISOO no calib files, processed in Pixinsight and PS cs2. I will post, the after mod pictures after I mod the camera, if my filter gets here before the weekend, fingers crossed.
  31. 2 points
    Late once again with the processing. I thought the UV filter did well. Almost equal to a Cak it seems. The cameras exposure and gain had to be cranked up quite a bit for a decent shot. Gave a bit of noise. All shots done on a Orion ST-80/Skyris 445 mono camera setup. HA is with 50mm Lunt Etalon. White light is with Lunt 1.25" wedge. Ha - Straight White light (with 50mm Lunt Ha Etalon still on front of scope) White light (Baader UV filter) -
  32. 2 points
    Another from yesterday's wonderful prom.
  33. 2 points
    Ok, so its think first then type,. is that the correct way round
  34. 2 points
    Tele Vue have trusted me with the prototype 31mm Ethos. Only problem is that it's a 3" format eyepiece that weighs 4kg ! Not necessarily. If you are not an ultra wide junkie, like me, the Delos goes a little deeper and the 10mm Baader CO a touch deeper still. But I am an ultra wide junkie, so ........
  35. 2 points
    Ian,Wigtown is only a 10 min drive away at most,I'm sure there's a cafe there if not there's definetly a Co-op for fresh breakfast essentials....oh and to replenish whiskey supplies too . Kenny
  36. 2 points
    I was more interested in that 31ethos!!!.....faulksy will be working out the fov as I speak!
  37. 2 points
    Thanks guys we'll get the hang of it eventually and have fun getting there
  38. 2 points
    I can't help but think this is the part of human nature that never stops to think. The part that says it's our universe and we will do as we please. We can't be 100% sure we are the only life or at least life as we know it yet we feel as though we have the right to treat everything as if we own it. Probably going to be yet another poor example but....... we have moved from dumping rubbish every where on the planet to dumping it in space to now wanting to dump it further a field. It's ok though as it's in the name of science. This is probably going off topic slightly but I hear the argument we are intelligent and this is how we are able to reach out to the edges of space. Yet here we are probably the only life in existence and we can't seem to stop killing each other. I may be wrong but that to me doesn't seem intelligent. I don't think it is intelligent to chop down trees either but that's another thing.
  39. 2 points
    Had several opportunities to try out my new solar set up, ST102 courtesy of astroboot and I have to say I am very pleased. Being f/5 the edges are not as sharp as I had been experiencing in my 80mm f/6 but I guess that was to be expected. I was also able to get it out under the stars the other night and was pleasantly surprised to see it takes magnification well on the moon. The moon was 95% lit so CA was obvious but this reduced significantly when using an ND filter. I have been a fan of astroboot for some years now but they really seem to be offering a much better variety in recent months although I doubt many realize as the good stuff sure does disappear quick
  40. 2 points
    (paraphrasing as far as I remember, Carl Sagan) future space craft will overtake past spacecraft but this does not mean it is pointless to build the first ones. they are essential parts of the development of the future crafts which could not have been built without the lessons they gave. progress is progress.
  41. 2 points
    Deep sky is anything outside the solar system. That is the accepted definition as far as I know.
  42. 2 points
    you can fall out with people you know Peter.
  43. 2 points
    Finally! Order PLACED! I have plumped for this in the end: http://www.firstlightoptics.com/dobsonians/skywatcher-skyliner-300p-flextube-goto.html Decided to get the powertank now http://www.firstlightoptics.com/batteries-powerpacks/skywatcher-powertank-17ah.html And the Celestron eyepiece and filter kit, which I have had before http://www.firstlightoptics.com/eyepiece-sets/celestron-eyeopener-eyepiece-and-filter-kit.html I think all of this amounts to the perfect combination of reasonable price, technology GoTo/tracking, aperture (12 inch will show me a lot I have never seen before!). Portability, and relative ease of setup, so I actually get the thing out to use on a regular basis. Ordered from FLO, who are brialliant. Should arrive on Thursday (looks at forecast doubtfully). Thanks to everyone on here for all the advice. Now I have gone for it, I feel very happy with the decision and look forward to sharing my experiences on other threads! Clear Skies All! Count Borgula
  44. 2 points
    Thanks again for the kind words, gents. I'm just getting to the point where I understand some of the basics in processing but am far from being where I'd like to be! It seems like each time I re-process an image, it ends up looking completely different from the last iteration! Personally, I think Hyperstar is a really good alternative for those who have limited time in an evening to capture data, especially when weather or light pollution is an issue. Of course, my HS images will never look as good as those with the equipment, time and dedication to create seemingly perfect images. I so admire them! Here is another mosaic I did in September of IC 1396, the Elephant Trunk Nebula in Cepheus. This was a nine panel mosaic, each panel was 18 mints (6X180 seconds). Curt
  45. 2 points
    Here's 10 minutes of monster prominence movement condensed into a few seconds from this morning (9 Nov)... http://www.digitalsky.org.uk/solar/2014/2014-11-09_ss7001_g3_b3_ap33_Crop.gif
  46. 2 points
    Nice looking canon you have got yourself there 12" Dob, 20mm Nagler.......I can see why your one happy
  47. 2 points
    The base is well under way my partner screwed it together. Need to: Fix the mini spirit level. Wind the adjustable feet right through and back down little too much pva glue in the way once through the t-nut. Re fix the sight base to the barn door top board. Fit the barn door to the base mount. Cut the wind handle down in size. Slot in the finder sight base then attach the sight tube. Align the sight tube to the hinge. Fit ball head to tripod thread. Attach camera, polar align and give it a whirl.
  48. 2 points
    Nice image, and how refreshing to see a normal looking couple of astronomers without beards or beannie hats
  49. 2 points
    I think it's very exciting. I hope the landing / docking is a success but I'm sure we will learn lots whatever the outcome. The mission has already delivered the most stunning images of a comets nucleus that I've ever seen and tons of scientific data too. I thought Giotto's flyby of Comet Halley was pretty impressive back in 1986 but this is in a different league What was beyond our reach in the past is being achieved now, what is beyond our reach today could very well achievable in the near future and I don't see any reason not to keep reaching
  50. 2 points
    Suppose the lander bounces off, and half an orbit later bumps into Rosetta and gets stuck, rendering both useless. That would be a case of cosmic irony. I say the Rosetta mission is right where it's supposed to be. Nobody played god. We played people, and built a rocket.
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